MISHRA, Vivek; ISHWAR, Bhola. Normalisation of Hamiltonian in photogravitational elliptic restricted three body problem with Poynting-Robertson drag. International Journal of Advanced Astronomy, [S. l.], v. 3, n. 1, p. 42–45, 2015. DOI: 10.14419/ijaa.v3i1.4534. Disponível em: https://www.sciencepubco.com/index.php/IJAA/article/view/4534.. Acesso em: 1 may. 2024.